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Goodwill and Intangibles Goodwill (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Jul. 01, 2017 | Dec. 31, 2017
Goodwill [Roll Forward] |  |  |
Goodwill, Beginning Balance | $ 425.3 | $ 413.8 |
Acquisitions | 0.0 | 0.0 |
Impairments | 0.0 | 0.0 |
Adjustments | (1.3) | 3.8 |
Goodwill, Ending Balance | 424.0 | 417.6 |
Goodwill, Impaired, Accumulated Impairment Loss | 0.0 | 0.0 | $ 0.0
Marine Engine [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, Beginning Balance | 31.7 | 25.1 |
Acquisitions | 0.0 | 0.0 |
Impairments | 0.0 | 0.0 |
Adjustments | (0.4) | 0.8 |
Goodwill, Ending Balance | 31.3 | 25.9 |
Boat [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, Beginning Balance | 2.2 | 2.2 |
Acquisitions | 0.0 | 0.0 |
Impairments | 0.0 | 0.0 |
Adjustments | 0.0 | 0.0 |
Goodwill, Ending Balance | 2.2 | 2.2 |
Fitness [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, Beginning Balance | 391.4 | 386.5 |
Acquisitions | 0.0 | 0.0 |
Impairments | 0.0 | 0.0 |
Adjustments | (0.9) | 3.0 |
Goodwill, Ending Balance | $ 390.5 | $ 389.5 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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